18-letter words containing d, r, o, p, n
- radical expression — an expression in which radical signs appear.
- rapid eye movement — rapidly shifting, continuous movements of the eyes beneath closed lids during the stage of sleep characterized by dreaming.
- redevelopment area — an urban area in which all or most of the buildings are demolished and rebuilt
- registered company — a company which has officially registered its business
- reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
- report an accident — If you report an accident, you inform an insurer or the police or other authorities that an accident has occurred.
- repossession order — If a bank or building society issues a repossession order, they officially tell someone that they are going to repossess their home.
- reproduction proof — repro proof.
- ribbon development — housing or commercial buildings built along a stretch of road.
- scissors-and-paste — designating or of a piece of writing that has been assembled from a variety of sources rather than by original research, often in a hasty or uninspired way
- seafloor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
- sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
- sound spectrograph — an electronic device for recording a sound spectogram.
- spread one's wings — to make full use of one's abilities
- subsidiary company — a company whose controlling interest is owned by another company.
- summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
- temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
- to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
- traditional option — an option that once purchased cannot be resold
- traditional policy — a life assurance policy in which the policyholder's premiums are paid into a general fund and his or her investment benefits are calculated according to actuarial formulae
- traditional weapon — a weapon having ceremonial tribal significance, such as an assegai or knobkerrie
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- under-compensation — to compensate or pay less than is fair, customary, or expected.
- under-depreciation — decrease in value due to wear and tear, decay, decline in price, etc.
- vermiform appendix — a narrow, blind tube protruding from the cecum, having no known useful function, in humans being 3 to 4 inches (8 to 10 cm) long and situated in the lower right-hand part of the abdomen.
- wild passionflower — the maypop, Passiflora incarnata.
- world championship — an international competition in a particular sport or activity for people all around the world